John e



(NofMoel.)

J. R. REYNOLDS.

SIGNATURE HOLDING ARM FOR BOOK SEWING MACHINES'.

No. 366,793. Patented July I9., 1887.

--aggrjalamwllllzniiuu In N. PETERS. Pmo-Lnbogmpner. washmgton, D. C.

UNITED STATES PATENT OFFICE.

JOHN R. REYNOLDS, OF HARTFORD, CONNECTICUT, ASSIGNOR TO THE SMYTH MANUFACTURING COMPANY, OF SAME PLACE.

SIGNATURE-HOLDING ARM OF BOOK-SEWING MACHINES.

SPECIFICATION forming part of Letters Patent No. 366,793, dated July 19, 1887.

Application filed June 17, 1896. Serial No. 205,496. (No model.)

To @ZZ whom it may concern:

Beit known that l, JoHN R. RnrNoLDs, of Hartford, in the county of Hartford and State of Connecticut, have invented an Improve` nient in Book-Sewing Machines, of which the following is a specification.

Letters Patent have heretofore been granted for boolrsewing machinery in which the signature is laid upon an arm that projects from 1o a vertical shaft, and the signature is presented tothe sewin(r mechanism as the shaft is rotated progressively, and reference is hereby made to Letters Patent No. 220,312 for the general character of the machine in which the present improvements are available.

.Vhere the scmicircular needles are made use of, as in the aforesaid patent, or such as are shown in Letters Patent Nos. 250, 991 or 262, 325, it is difficult to puncture the paper of the signature by theneedles themselves, because such needles are liable to spring or bend; hence it has usually been necessary to saw or otherwise notch the folded back edges of the signatures previous to placing the same in the machine.

The present invention relates to an improvement in the arms that receive and hold the folded signatures, whereby each folded signature is punctured at the required places immediately before the needles pass into the signatures in sewing the same. "Thereby the difficulty heretofore experienced of injuring the sheets by the notches is prevented, and at the same time the perforations are always made at the proper places for the needles to enter. and it is only necessary to place the folded signatures properly upon successive arms as they are carried around by the revolving shaft, and in addition to this the perforations do not require to be as large as the notches heretofore made use of, and they are not objectionable in appearance.

ln the drawings, Figure 1 is an elevation of one of the arms and of part of the shaft for supporting the same. Fig. 2 is an end view of the said arm in larger size. Fig. 3 is an elevation, and Fig. 4 a plan view, of the arm alone. Fig. 5 is an elevation, and Fig. 6 a plan View, of the connecting-bar. Fig. 7 is an elevation, and Fig. 8 a plan view, of the recip; rocating bar. Fig. 9 is a plan view in larger size ofthe manner of clamping the perforators to the connecting-bar; and Fig. 10 is a section in larger size at the line x x, Fig. 1.

The vertical shaft C is revolved intermittently, as in said Patent No. 220,312, and proljecting from the same are arms c, upon which the signatures are to be laid. The sewing mechanism is not represented in the drawings; but the same is composed of nearly semicircular needles and the looping devices con- 6o nected with the same, as represented in the aforesaid patents.

Each of the arms e is made in the same n1anner, and I will therefore only describe one of them. The arm c is in the form of a metal bar extending out from the hub of the shaft C and having through it vertical mortises for the passage ofthe perforators or lances 2. These mortises and lances are at the proper distances apart to perforate the pape at the places where 7,: the needles are to enter and to leave the fold of the signature. Each lance or perforator. is iu the form of a narrow thin blade -with a sharp point at one end, and the mortises in the arm c are of the proper size for the perforators 2 to slide freely in such mortises, and the arm c is preferably made with removable plates 3, that cover the mortises at one side and retain the lances in .their proper positions.

The top edge of the arm c is recessed to form 8o the cavities through which the needles pass in performing the sewing, and at the sides ofthis arm c there are plates 4. of thin sheet metal, the same being secured to the arm by rivets or screws 5.

Beneath the arm c and between the plates l is a connectingbar, 6, that is grooved Vertr cally for the reception of the lower ends of the perforators 2, and these are clamped to the said bar 6 by screws 7, so that said perforators 9o are raised and lowered bodily by a movement given to the bar 6. The screws 8 pass through the plates 4, and also through cam-slots 9 in the reciprocating bar 10, and this bar 10 has longitudinal slots 1l, that receive the L-shaped 95 lower ends of the plates 12, that hang down from the connecting-bar 6, so that when this bar 1() is moved endwise the canrslots 9 raise or lower the same, and with it the connecting bar 6 is moved up and down bodily to project roo where the sewing is performed and the shaft 1o and arms are raised up, as in aforesaid Patent No. 220,312, the sheet is held down upon the arm by stationary fingers projecting from the bar that supports the shafts of the needles, and at this momentan end movement is given I 5 :to the reciprocating bar 10 by any suitable devicesuch, for instance, .as the hook 14, that passes down over the roller or stud upon the reci proc-ating bar lO-and in so doing the lances or perforators are rapidly raised and pass'through the back fold of the signature, making the required perforations for the passage of the sewing-needles, and then, the bar 10` being reciprocated in the other direction, the

perforators are withdrawn and the sewing is 25 proceeded with, asin either of the aforesaid patents.

I claimas my invention-- 1. |The combination, with the mechanism, in

a book-sewing machine, for supporting and moving the parts, of an arm having two par- 3o allel plates, a range of perforators, and mechanism for moving the same between and sup ported by'sueh plates, whereby the folded signature is supportedby the upper edge of the arm and hangs thereon while being perforated 3 5 and scwed, substantially as specied.

2. The arm e, slotted vertically, the perforators received within such slots, the connecting-bar to which the perforators are attached, the plates 4 at the sides of the arm, the recip- .to rocating bar having cam-slots, and the screws passing through the plates 4 and cam-slots, substantially as set forth. p f

3. The combination, with the arm e and plates 4, of the perforators passing through 45 mortises in the arms, the connecting-bar 6, to which the perforators are attached, the reciprocating bar 10, and the plates 12, for connecting the bar 6 and reciprocating bar 10, suby stantially as set forth. 5o

Signed by me this 9th day of June, A. D. 1886.

` JNO. n. REYNOLDS. Witnesses:

NV. B. MCCRAY, CHAs. E. PARKER. 

